7/23 Questions Exam 1 Flashcards Preview

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Flashcards in 7/23 Questions Exam 1 Deck (20):
1

Type IVa articular receptors would be present in what locations?

Fibrous Capsule
Articular Fat Pads or
Adventitia of Blood Vessels

2

Type IVb articular receptors would be present in what locations?

Accessory ligaments in general, dense in the posterior longitudinal ligament of the spine

3

Type IV articular receptors would be absent in what part(s) of the synovial (diarthrosis) joint?

Synovial Membrane
Articular Cartilage
Synovial Menisci or Intra-articular discs

4

What are the three modifications of articular synovial membrane?

1) synovial villi
2) articular fat pads or haversian glands
3) synovial menisci and intra-articular discs

5

What is the generic function of modifications of articular synovial membrane?

aid in spreading synovial fluid

6

Where are the articular fat pads located?

In the fibrous layer of synovial membrane; they are absent from articular cartilage, synovial menisci, intra-articular disc

7

Articular fat pads are most numerous in what location along the vertebral column?

Lumbar zygapophyses

8

Intra-articular discs are a feature of what joints examples?

Temporomandibular
Sternoclavicular
Acromioclavicular
Radio-ulnar joints

9

Synovial menisci are a feature of what joint examples?

Femur-tibia articulation
Cervical zygapophyses
Lumbar zygapophyses

10

What are the layers of the synovial membrane?

Outer fibrous layer and inner (lumenal) cellular layer AKA synovial lamina intima

11

What are the specific functions of type A synovial cells?

are phagocytic

12

What is the specific function of type B synovial cells?

Secrete proteinaceous substances and hyaluronic acid

13

What is the source of nutrition for articular cartilage?

Blood vessels in the synovial membrane
Sinuses of the bone marrow cavity
From synovial fluid itself

14

Which collagen fiber type predominates in articular cartilage?

Type II

15

What are proteoglycans composed of?

A core protein and glycosaminoglycans

16

What is the primary function of bound glycosaminoglycans in articular cartilage?

Form a network for water retention

17

Cartilage is able to change shape due to compression, a characteristic known as ____?

Deformation

18

What is implied when cartilage is said to have elastic properties?

Cartilage can deform and returns to original volume rapidly, a time independent property

19

What is implied when cartilage is said to have viscoelastic properties?

Cartilage can deform but returns to original volume slowly, a time dependent property

20

What is the function of type IV articular receptors?

Nociceptive, they monitor pain